You can find an image album with measurements here.
I would like to motorize a gumball hopper to dispense wooden balls for a project. The gumball hopper normally moves the sorting wheel via a gear which is turned by the coin-op handle on the front of the machine (see e.g. here).
I know I can attach a motor to a shaft with a standard coupler (see e.g. here), however I am having trouble seeing how to correctly attach the gear/sprocket to the shaft. I guess I could use a long screw going through the sprocket and into another coupler and just using friction to fix the screw to the sprocket, but that does not seem like a reliable or efficient way of transferring the rotational energy of the shaft to the sprocket.
The sprocket does not have a set screw hole to be fixed to a shaft.
Feel like I must be missing something! The part was originally screwed directly onto another metal part with a form-fitting square peg going into the sprocket's socket.
Let me know if more information would be useful.
Also if I am better off just using a separate made-to-order sprocket, that is fine too!